Objects in the image:
category: suitcase
category: suitcase
category: suitcase
category: person
category: person
category: suitcase
category: suitcase
category: suitcase
category: suitcase
category: person
category: person
category: person
category: suitcase
category: person
category: suitcase
category: person
category: suitcase
category: suitcase
category: suitcase

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is he near the trolley?
a: Yes
q: is he sitting?
a: Yes
q: is he wear a cap?
a: N/A
q: is he next to the person in a black shirt?
a: Yes